On our trip out west a few years ago we stopped overnight in Mitchell and went in town the next morning. We found it interesting because they were re-doing the scene on the outside. They change it every year. We did go inside to see the photos of the various designs they had in the past. Would we have driven 150 miles to see it? I doubt it, but we were taking I-90 anyway.
We stopped there because it wasn't out of our way. It was fine as a way to take a break on our long driving trip and interesting to see how they can make all the different pictures out of corn and grains. Would I drive 150 miles out of my way? No.
We are staying at Breezy Shores Resort & Beach Club in Detroit Lakes. Have you stayed there and how is it? We have a lake front unit. It was a last minute exchange and my wife's sisters from Shakopee are coming up for the weekend.
Good idea. South Dakota is a good state to visit, but there is so much of nothing between the east and west borders, which have the interesting sites to visit. The ranches keep the country fed, but aren't much to look at.